A detail of an Abbey Road Studios EMI TH12345 MK IV recording console which Pink Floyd used to record their landmark album "The Dark Side of the Moon" before it is auctioned at Bonhams in London, March 20, 2017. REUTERS/Stefan Wermuth

A detail of an Abbey Road Studios EMI TH12345 MK IV recording console which Pink Floyd used to record their landmark album "The Dark Side of the Moon" before it is auctioned at Bonhams in London, March 20, 2017. REUTERS/Stefan Wermuth